A dose of 30 mg once daily is recommended as the snoh allegra singer dose in pediatric patients with decreased renal function [see Clinical Pharmacology (12. 3 )]. ALLEGRA ODT. Seasonal Allergic Rhinitis and Chronic Idiopathic Urticaria. Children 6 to 11 Years: ALLEGRA ODT is intended for use only in children 6 to 11 years of age. The recommended amoxicillin overdose amount of allegra of ALLEGRA ODT is 30 mg twice daily. A dose of 30 mg once daily is recommended as the starting dose in pediatric patients with decreased renal function [see Clinical Pharmacology (12. 3 )]. ALLEGRA ODT is designed to disintegrate on the tongue, followed by swallowing with or without water. ALLEGRA ODT should be taken on an empty stomach.